#include <stdio.h>
#include <math.h>
int main()
{
    int i, j, k, l, m, n;
    printf("input two FENSHU :\n");
    scanf("%d/%d,%d/%d", &i, &j, &k, &l);
    m = zxgb(j, l) / j * i;
    n = zxgb(j, l) / l * k;
    if (m > n)
        printf("%d/%d >%d/%d\n", i, j, k, l);
    else if (m == n)
        printf("%d/%d =%d/%d\n", i, j, k, l);
    else
        printf("%d/%d <%d/%d\n", i, j, k, l);
}
zxgb(a, b)

    int a,b;
{
    long int c;
    int d;
    if (a < b)
        c = a, a = b, b = c;
    for (c = a * b; b != 0;)
    {
        b = d;
        b = a % b;
        a = d;
    }
    return ((int)c / a);
}
